package gg.zsw.java;

import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

/**
 * @author zhou.sw
 * @Date 2020/7/9 16:15
 */
public class Main {
    public static void main(String[] args) {
        String[] split = "    ".trim().split("\\s+");
        System.out.println(split.length);

        for (String s : split) {
            System.out.println("haha:" + s);
        }

        Map<String, Object> messageMap = new HashMap<>();
        if (messageMap.get("DF394") == null || messageMap.get("DF394").toString().trim().length() == 0) {

        }

    }
}
